Ferros appears to be a leader of an Evil Horde invasion force. He was summoned to Eternia by the evil wizard Morgoth, who planned to conquer Eternia. After her village was imprisoned by the Invasion Force, Teela-Na is forced to flee and seek help from Castle Grayskull. After Teela-Na becomes the Sorceress Of Grayskull, she returns to her home village. With her magic the Sorceress, is able to send Ferros and his allies to the Demon Demension. Morgoth the Terrible suffered the Invasion Force's fate.

Trivia (Clawful94): Ferros was voiced by John Erwin in the MOTU Filmation cartoons.